The government raised hundreds of billions of dollars.
Explanation:
War bonds are debt securities issued by the government in order to raised enough money to fund their military's operations.
The government sell this bonds to the public (which usually purchased by the people in the private sectors or the government of another country). This bond basically represent that United States government have a debt to the purchaser, and it will pay it all back in the future along with the returns.
Since bonds issued by the government is generally a safe investment, selling war bonds could rise hundreds of billions of dollars.
